Seat belt and car seat: rules for driving

Verified 02 November 2026 - Public Service / (Prime Minister)

What are the mandatory restraints for adults and children when you drive? We present you the rules concerning the wearing of the seat belt and the installation of a child in a car seat.

What applies to you ?

Are you looking for information about mandatory child or adult restraints?

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      For a child

      Principle

      In circulation, a child under 10 years must be installed at the rear of the vehicle and be attached in a car seat adapted to its morphology and weight (approved child restraint system).

      Exceptions

      The use of a approved child restraint system is not required in the following cases :

      • The morphology the child is suitable for wearing a seat belt (the car seat is provided up to a size of 1m50)
      • The child has a medical certificate of exemption issued by a licensed physician. The medical certificate must indicate its validity. In case of control, it must be presented to law enforcement.
      • The child is transported in a taxi or in a public transport vehicle.

      One child under 10 years old may be installed at the front of the vehicle, provided that approved restraint system, in the following cases

      • The child is installed back to the road, in an approved restraint system intended for that use ("back to the road" baby device ). The airbag (airbag) must be disabled.
      • The vehicle does not comprise no rear seats
      • The rear seat of the vehicle is not equipped with seat belt
      • The rear seats of the vehicle are momentarily unusable
      • Other children under the age of 10 already occupy all the rear seats of the vehicle.

      Choice of restraint

      Consult the Road Safety website for know how to choose one child-friendly restraint.

      The restraint shall have a approval endorsement certifying that it complies with european standards :

      • The R44 standard classifies devices into 5 groups corresponding to weight of the child . Only the devices referenced R. 44-03 and R. 44-04 remain authorized.
      • The R129 standard (Isize) classifies the seats according to size of child. This standard is gradually replacing R44. All standard seats Isize have the system Isofix, which has been mandatory in new vehicles since 2011.

      Penalties

      A driver who does not comply with these rules shall be punished by a fine up to €750. In general, this is a lump sum fine of €135.

      Principle

      In circulation, a child 10 years of age or older must be secured by a seat belt provided that the seat is equipped with it. It can be installed at the front or rear of the vehicle. Each seat equipped with a seat belt must be occupied by a single child.

      Exceptions

      The wearing a seat belt is not mandatory in the following cases :

      • Child 10 years of age or older whose morphology is manifestly unsuitable for the use of seat belts
      • Child 10 years of age or older with a medical certificate of exemption issued by a licensed physician. The medical certificate must indicate its validity. In case of control, it must be presented to law enforcement.
      • In emergency response, if he is a passenger in a priority general interest vehicle or an ambulance
      • In built-up areas, if it is a passenger of a utility vehicle forced by necessity of service to stop frequently
      • In built-up areas, if it is a passenger of a vehicle making door to door deliveries.

      Penalties

      The driver who does not comply with these obligations is sanctioned by a fine up to €750. In general, this is a lump sum fine of €135.

      For an adult

      In circulation, the wearing of the seat belt is mandatory at the front and rear of the vehicle provided that the seat is equipped with it. Each seat equipped with a seat belt must be occupied by one person.

      However, the wearing a seat belt is not mandatory for the following people :

      • Person whose morphology is manifestly unsuitable for the use of seat belts
      • Person with a medical certificate of exemption issued by a licensed physician. The medical certificate must indicate its validity. In case of control, you must present it to law enforcement.
      • In emergency responsedriver or passenger of a priority general interest vehicle or ambulance
      • Driver of taxi in service
      • In agglomeration, driver or passenger of a utility vehicle forced by necessity of service to stop frequently
      • In agglomeration, driver or passenger of a vehicle making door to door deliveries.

      Failure to comply with the obligation to wear a seat belt is punishable by a fine up to €750. In general, this is a lump sum fine of €135. The unattached driver also risks a 3-point removal on his license.

      FYI  

      Associated with the seat belt, a airbag allows shock absorption in the event of a collision (a replacement airbag installed in a car must be new).

      Summary of rules for transporting a child by car

      Infographie - Car safety device according to the age of the child
      Illustration X - Car safety device according to the age of the child - plus de détails dans le texte suivant l’infographie
      Illustration X
      Crédits : Public Service (DILA)

      Ouvrir l’image dans une nouvelle fenêtre

      A child under 10 years of age shall be secured in an approved restraint system adapted to his/her body shape.

      A child 10 years of age or older must be fastened with a seat belt, front or rear.

      Car safety device according to the age of the child

      Download
      Car safety device according to the age of the child - plus de détails dans le texte suivant l’infographie
      Crédits: Service Public (DILA)Infographie - Car safety device according to the age of the child

      A child under 10 years of age shall be secured in an approved restraint system adapted to his/her body shape.

      A child 10 years of age or older must be fastened with a seat belt, front or rear.

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